On 09/13, Mina Almasry wrote:

On Thu, Sep 12, 2024 at 10:13 AM Stanislav Fomichev [off-list ref] wrote:

quoted

This is where all the tests that depend on the HW functionality live in

Is this true? My impression is that selftests/net verifies core
functionality and drivers/net verifies more lower level driver
(specific?) functionality. There are tests in selftests/net that
depend on HW functionality, I think like bpf_offload.py.

devmem tcp in my mind is primarily a core functionality and a lot of
effort was put into making the driver bits of it as minimal as
possible. Is there a need to move it or is this preference?

I'm wrong and it is actually drivers/net/hw, not drivers/net. But yes,
the driver/net/hw is the directory for the tests that depend on some
HW functionality (NIPA doesn't run the tests in this directory; but
the vendors eventually will). And until/if we get to loopback mode [1],
there is no way to run ncdevmem without special HW :-(

1: https://lore.kernel.org/netdev/20240913150913.1280238-5-sdf@fomichev.me/T/#m4fc52463857c19ad432db656c433cffdf74477a4 (local)